As of Windows 10.0.27950.1
The following schema shows how many keyboard drivers (out of 216) have VK_IME_ON at particular location on keyboard.
| Scancode | Layout name | 
|---|---|
| E0F2 | JP Japanese Keyboard Layout for 101 | 
| JP Japanese Keyboard Layout for 106 | |
| JP Japanese Keyboard Layout Stub driver | 
VK_IME_ON = 0x16; // 22